<?php 
/*
	interfaces_assign.php
	Copyright (C) 2009 Wang Zhongliang <wzlsh629@163.com>.
	All rights reserved.

	part of m0n0wall (http://m0n0.ch/wall)
	Written by Jim McBeath based on existing m0n0wall files
	
	Copyright (C) 2003-2005 Manuel Kasper <mk@neon1.net>.
	All rights reserved.
	
	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions are met:
	
	1. Redistributions of source code must retain the above copyright notice,
	   this list of conditions and the following disclaimer.
	
	2. Redistributions in binary form must reproduce the above copyright
	   notice, this list of conditions and the following disclaimer in the
	   documentation and/or other materials provided with the distribution.
	
	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	POSSIBILITY OF SUCH DAMAGE.
*/

##|+PRIV
##|*IDENT=page-interfaces-assignnetworkports
##|*NAME=Interfaces: Assign network ports page
##|*DESCR=Allow access to the 'Interfaces: Assign network ports' page.
##|*MATCH=interfaces_assign.php*
##|-PRIV

$pgtitle = array("网络设置", "接口分配");
$pgmenu = array('network', '/interfaces_assign.php');
require("guiconfig.inc");

/*
	In this file, "port" refers to the physical port name,
	while "interface" refers to LAN, WAN, or OPTn.
*/

/* get list without VLAN interfaces */
$portlist = get_interface_list();


/* add VLAN interfaces */
if (is_array($config['vlans']['vlan']) && count($config['vlans']['vlan'])) {
    foreach ($config['vlans']['vlan'] as $vlan) {
        $portlist[$vlan['vlanif']] = $vlan;
        $portlist[$vlan['vlanif']]['isvlan'] = true;
    }
}

/* add Bridge interfaces */
if (is_array($config['bridges']['bridged']) && count($config['bridges']['bridged'])) {
        foreach ($config['bridges']['bridged'] as $bridge) {
                $portlist[$bridge['bridgeif']] = $bridge;
                $portlist[$bridge['bridgeif']]['isbridge'] = true;
        }
}

/* add GIF interfaces */
if (is_array($config['gifs']['gif']) && count($config['gifs']['gif'])) {
        foreach ($config['gifs']['gif'] as $gif) {
                $portlist[$gif['gifif']] = $gif;
                $portlist[$gif['gifif']]['isgif'] = true;
        }
}

/* add GRE interfaces */
if (is_array($config['gres']['gre']) && count($config['gres']['gre'])) {
        foreach ($config['gres']['gre'] as $gre) {
                $portlist[$gre['greif']] = $gre;
                $portlist[$gre['greif']]['isgre'] = true;
        }
}

/* add LAGG interfaces */
if (is_array($config['laggs']['lagg']) && count($config['laggs']['lagg'])) {
        foreach ($config['laggs']['lagg'] as $lagg) {
                $portlist[$lagg['laggif']] = $lagg;
                $portlist[$lagg['laggif']]['islagg'] = true;
        /* LAGG members cannot be assigned */
        $lagifs = explode(',', $lagg['members']);
        foreach ($lagifs as $lagif)
            if (isset($portlist[$lagif]))
                unset($portlist[$lagif]);
        }
}

/* add QinQ interfaces */
if (is_array($config['qinqs']['qinqentry']) && count($config['qinqs']['qinqentry'])) {
        foreach ($config['qinqs']['qinqentry'] as $qinq) {
                $portlist["vlan{$qinq['tag']}"]['descr'] = "VLAN {$qinq['tag']}";
                $portlist["vlan{$qinq['tag']}"]['isqinq'] = true;
                /* QinQ members */
                $qinqifs = explode(' ', $qinq['members']);
                foreach ($qinqifs as $qinqif) {
            $portlist["vlan{$qinq['tag']}_{$qinqif}"]['descr'] = "QinQ {$qinqif}";
            $portlist["vlan{$qinq['tag']}_{$qinqif}"]['isqinq'] = true;
        }
        }
}

/* add PPP interfaces */
if (is_array($config['ppps']['ppp']) && count($config['ppps']['ppp'])) {
    $i = 0;
    foreach ($config['ppps']['ppp'] as $ppp) {
        $portname = 'ppp_' . basename($ppp['port']);
        $portlist[$portname] = $ppp;
        $portlist[$portname]['isppp'] = true;
        $i++;
    }
}

if ($_POST['apply']) {
	if (file_exists("/var/run/interface_mismatch_reboot_needed"))
		exec("/etc/rc.reboot");
	else {
		write_config();

		$retval = 0;
		$savemsg = get_std_save_message($retval);

		config_lock();
		$retval = filter_configure();
		config_unlock();

		if (stristr($retval, "error") <> true)
			$savemsg = get_std_save_message($retval);
		else
			$savemsg = $retval;

		unlink_if_exists("/tmp/reload_interfaces");
	}

} else if ($_POST) {

	unset($input_errors);

	/* input validation */

	/* Build a list of the port names so we can see how the interfaces map */
	$portifmap = array();
	foreach ($portlist as $portname => $portinfo)
		$portifmap[$portname] = array();

	/* Go through the list of ports selected by the user,
	   build a list of port-to-interface mappings in portifmap */
	foreach ($_POST as $ifname => $ifport) {
		if (($ifname == 'lan') || ($ifname == 'wan') || (substr($ifname, 0, 3) == 'opt'))
			$portifmap[$ifport][] = strtoupper($ifname);
	}

	/* Deliver error message for any port with more than one assignment */
	foreach ($portifmap as $portname => $ifnames) {
		if (count($ifnames) > 1) {
			$errstr = "网卡 " . $portname .
				" 被赋给了 " . count($ifnames) .
				" 个接口：";
				
			foreach ($portifmap[$portname] as $ifn)
				$errstr .= " " . $ifn;
			
			$input_errors[] = $errstr;
		}
	}


	if (!$input_errors) {
		/* No errors detected, so update the config */
		foreach ($_POST as $ifname => $ifport) {
		
			if (($ifname == 'lan') || ($ifname == 'wan') ||
				(substr($ifname, 0, 3) == 'opt')) {
				
				if (!is_array($ifport)) {
					$config['interfaces'][$ifname]['if'] = $ifport;
					if (preg_match('/^ppp_(.+)$/', $ifport, $matches)) {
						$config['interfaces'][$ifname]['pointtopoint'] = true;
						$config['interfaces'][$ifname]['serialport'] = $matches[1];
					}

					/* check for wireless interfaces, set or clear ['wireless'] */
					if (preg_match($g['wireless_regex'], $ifport)) {
						if (!is_array($config['interfaces'][$ifname]['wireless']))
							$config['interfaces'][$ifname]['wireless'] = array();
					} else {
						unset($config['interfaces'][$ifname]['wireless']);
					}
				
					/* make sure there is a descr for all interfaces */
					if (!isset($config['interfaces'][$ifname]['descr']))
						$config['interfaces'][$ifname]['descr'] = strtoupper($ifname);
				}
			}
		}
	
		write_config();
		
		touch("/tmp/reload_interfaces");
	}
}

if ($_GET['act'] == "del") {
	$id = $_GET['id'];

	if (link_interface_to_bridge($id))
		$input_errors[] = "该接口是桥的成员接口。请先从桥中移除再继续操作。";
	else if (link_interface_to_gre($id))
		$input_errors[] = "The interface is part of a gre tunnel. Please delete the tunnel to continue";
	else if (link_interface_to_gif($id))
		$input_errors[] = "The interface is part of a gif tunnel. Please delete the tunnel to continue";
	else {
		unset($config['interfaces'][$id]['enable']);
		interface_bring_down($id);   /* down the interface */
		
		unset($config['interfaces'][$id]);	/* delete the specified OPTn or LAN*/

		if($id == "lan") {
			unset($config['interfaces']['lan']);
			if (is_array($config['dhcpd']))
				unset($config['dhcpd']['lan']);
				unset($config['shaper']);
				unset($config['ezshaper']);
				unset($config['nat']);
				system("rm /var/dhcpd/var/db/*");
        			services_dhcpd_configure();
		}

		if ($config['filter']['rule'] > 0)
       	 	foreach ($config['filter']['rule'] as $x => $rule) {
                	        if($rule['interface'] == $id)
               		                 unset($config['filter']['rule'][$x]);
        	}
		if ($config['nat']['advancedoutbound']['rule'] > 0)
        	foreach ($config['nat']['advancedoutbound']['rule'] as $x => $rule) {
                	        if($rule['interface'] == $id)
           	    	                 unset($config['nat']['advancedoutbound']['rule'][$x]['interface']);
        	}
        	if (count($config['nat']['rule']) > 0) 
        	foreach ($config['nat']['rule'] as $x => $rule) {
                        	if($rule['interface'] == $id)
                	                unset($config['nat']['rule'][$x]['interface']);
        	}

		write_config();
	
		/* XXX: What is this for?!?! */
		if($config['interfaces']['lan']) {
			unset($config['dhcpd']['wan']);		
		}
	
		$savemsg = "接口已删除。";
	}
}

if ($_GET['act'] == "add") {
	/* find next free optional interface number */
	if(!$config['interfaces']['lan']) {
		$newifname = "lan";
		$config['interfaces'][$newifname] = array();
		$config['interfaces'][$newifname]['descr'] = $descr;
	} else {
		for ($i = 1; $i <= count($config['interfaces']); $i++) {
			if (!$config['interfaces']["opt{$i}"])
				break;
		}
		$newifname = 'opt' . $i;
		$descr = "OPT{$i}";
		$config['interfaces'][$newifname] = array();
		$config['interfaces'][$newifname]['descr'] = $descr;
		ksort($config['interfaces']);
	}
	
	/* Find an unused port for this interface */
	foreach ($portlist as $portname => $portinfo) {
		$portused = false;
		foreach ($config['interfaces'] as $ifname => $ifdata) {
			if ($ifdata['if'] == $portname) {
				$portused = true;
				break;
			}
		}
		if (!$portused) {
			$config['interfaces'][$newifname]['if'] = $portname;
			if (preg_match($g['wireless_regex'], $portname))
				$config['interfaces'][$newifname]['wireless'] = array();
			break;
		}
	}
	
        /* XXX: Do not remove this. */
        mwexec("rm -f /tmp/config.cache");

	write_config();

	$savemsg = "接口已添加。";

}

include("head.inc");

if(file_exists("/var/run/interface_mismatch_reboot_needed")) 
	if ($_POST)
		$savemsg = "机器需要重启，请应用设置并重启机器。";
	else
		$savemsg = "检测到接口不匹配。请检查并重新保存。";

?>

<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
<?php include("fbegin.inc"); ?>
<?php if ($input_errors) print_input_errors($input_errors); ?>
<?php if ($savemsg) print_info_box($savemsg); ?>
<div class="soft_cont_right_table">
<form action="interfaces_assign.php" method="post" name="iform" id="iform">
<?php if (file_exists("/tmp/reload_interfaces")): ?><p>
<?php print_info_box_np("接口配置已更改<br>请应用更改使其生效。");?><br>
<?php endif; ?>

<table width="100%" border="0" cellpadding="0" cellspacing="0">
  <tr> 
    <td>
	<div id="mainarea">
        <table class="tabcont" width="100%" border="0" cellpadding="0" cellspacing="0">
       <tr> 
	<td class="listhdrr">接口</td>
	<td class="listhdr">网卡</td>
	<td class="list">&nbsp;</td>
  </tr>
  <?php foreach ($config['interfaces'] as $ifname => $iface):
  	if ($iface['descr'])
		$ifdescr = $iface['descr'];
	else
		$ifdescr = strtoupper($ifname);
	?>
  <tr> 
	<td class="listlr" valign="middle"><strong><?=$ifdescr;?></strong></td>
	  <td valign="middle" class="listr">
		<select name="<?=$ifname;?>" id="<?=$ifname;?>">
		  <?php foreach ($portlist as $portname => $portinfo): ?>
		  <option value="<?=$portname;?>" <?php if ($portname == $iface['if']) echo "selected";?>> 
          <?php if ($portinfo['isvlan']) {
            $descr = "VLAN {$portinfo['tag']} on {$portinfo['if']}";
        if ($portinfo['descr'])
            $descr .= " (" . $portinfo['descr'] . ")";
            echo htmlspecialchars($descr);
        } elseif ($portinfo['isppp']) {
            $descr = "PPP {$portinfo['port']}";
            if ($portinfo['descr'])
                $descr .= " (" . $portinfo['descr'] . ")";
            echo htmlspecialchars($descr);
                } elseif ($portinfo['isbridge']) {
                        $descr = strtoupper($portinfo['bridgeif']);
                        if ($portinfo['descr'])
                $descr .= " (" . $portinfo['descr'] . ")";
                        echo htmlspecialchars($descr);
                } elseif ($portinfo['isgre']) {
                        $descr = "GRE {$portinfo['remote-addr']}";
                        if ($portinfo['descr'])
                $descr .= " (" . $portinfo['descr'] . ")";
                        echo htmlspecialchars($descr);
                } elseif ($portinfo['isgif']) {
                        $descr = "GRE {$portinfo['remote-addr']}";
                        if ($portinfo['descr'])
                $descr .= " (" . $portinfo['descr'] . ")";
                        echo htmlspecialchars($descr);
                } elseif ($portinfo['islagg']) {
                        $descr = strtoupper($portinfo['laggif']);
                        if ($portinfo['descr'])
                $descr .= " (" . $portinfo['descr'] . ")";
                        echo htmlspecialchars($descr);
        } elseif ($portinfo['isqinq']) {
            echo htmlspecialchars($portinfo['descr']);
        } else
            echo htmlspecialchars($portname . " (" . $portinfo['mac'] . ")");
        ?>
        </option>
		<?php endforeach; ?>
	</select>
	</td>
	<td valign="middle" class="list">
		  <?php if ($ifname != 'wan'): ?>
		  <a href="interfaces_assign.php?act=del&id=<?=$ifname;?>"><img src="./themes/<?= $g['theme']; ?>/images/icons/icon_x.gif" title="删除" width="17" height="17" border="0"></a> 
		  <?php endif; ?>
		</td>
  </tr>
  <?php endforeach; ?>
  <?php if (count($config['interfaces']) < count($portlist)): ?>
  <tr>
	<td class="list" colspan="2"></td>
	<td class="list" nowrap>
	<a href="interfaces_assign.php?act=add"><img src="./themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" title="添加" width="17" height="17" border="0"></a>
	</td>
  </tr>
  <?php else: ?>
  <tr>
	<td class="list" colspan="3" height="10"></td>
  </tr>
  <?php endif; ?>
</table>
</div>
<br/>
<input name="Submit" type="submit" class="formbtn" value="保存"><br><br>
<p>
</p>
<ul>
  <li><span class="vexpl">更改机器的IP地址</span></li>
  <li><span class="vexpl">重新获取DHCP地址</span></li>
  <li><span class="vexpl">使用新的IP地址访问web配置界面</span></li>
</ul></td>
	</tr>
</table>
</form>
</div>
<?php include("fend.inc"); ?>
</body>
</html>
